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The Bay Area got socked with wild weather, leading to power outages, minor flooding and lightning strikes. (Published Thursday, April 12, 2012)

Updated at 12:05 AM PDT on Friday, Apr 13, 2012

UPDATE:

- Oakland Airport has resumed operatins.

Sewage Floods San Francisco

Residents and businesses in San Francisco on Folsom St near 17th experienced unpleasant flooding when sewage washed up on their doorsteps. (Published Thursday, Jan. 29, 2015)

- Oakland Airport has also suspended operations.

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Severe Weather Affects SFO

Weather caused NBC Bay Area reporter George Kiriyama to report via Google Plus, as he talks with NBC Bay Area's Diane Dwyer about her scary flight into SFO. (Published Thursday, April 12, 2012)

Severe weather rolled into the Bay Area tonight just after 8:00 p.m. PDT.

The National Weather Service issued a severe thunderstorm warning for Northern San Mateo County which expired at 8:45 p.m.

Videocast: Thunderstorms, Hail And Gusty Wind

A strong storm system bringing a rare opportunity for strong *overnight* thunderstorms across the Bay Area. Look for periods of rain at times mixed with occasional thunderstorms which will contain briefly gusty winds, small hail and dangerous lightning. As the saying goes, "when thunder roars, stay indoors". And watch the overnight light show from the safety of your home. A very strong upper level jet stream is screaming into the Central Coast just to our south providing a strong mechanism for lift in the atmosphere, enhanced by smaller scale features that should increase vertical motion into the early morning hours. By mid-late morning, the showers should decreasing in coverage, though we'll continue the threat for showers and isolated thunderstorms into the afternoon - especially for the inland hills of the North, East and South Bay into the early evening. Thankfully, we'll catch a break with drying and eventually warming conditions for the weekend. Stay tuned for updates on any severe weather alerts here on NBCBayArea and NBCBayArea.com - Rob Mayeda (Published Thursday, April 12, 2012)

This included the cities of South San Francisco, San Bruno, Pacifica, Millbrae, Daly City and Burlingame.

The photo of hail on the right was sent to us from Will Smith of Pacifica. (click for larger) Scroll down for more images and comments from people witnessing the storm.

At 8:09 p.m. PDT, the national Weather Service doppler radar indicated a severe thunderstorm capable of producing quarter size hail. This storm was located near El Ganada, or seven miles southwest of Pacifica, and moving northeast at 25 mph.

The storm weakened but was still capable of producing large hail and damaging winds.

Light rain was reported in Oakland, and SOMA, around 8:22 p.m.

At approximately 8:47 p.m. thunder and lightening was reported in San Francsico, and around 9:00 p.m. heavy rain was reported in Santa Rosa.

Several power outages were reported, including 2000 in San Francisco without power and 1,700 in Concord.

The FAA instituded a ground delay program due ot the severe weather. It is scheduled to end at 2:00 a.m. Delays up to 2.5 hours are expected. 61 flights have been cancelled.

At least one United flight was hit by lightning and had to return to SFO.

Just after 9:00 p.m. NBC Bay Area Meteorologist Rob Mayeda said the storm was slowly moving south, over Tri-Valley, Hayward, Fremont, San Mateo, Mountain View, and moving into San Jose before 11:00 p.m.

Thunderstorms are expected to continue well past midnight and the Bay Area will likely see more isolated showers throughout the day Friday.

The California Highway Patrol has issued high wind advisories for the Golden Gate Bridge and the Richmond-San Rafael Bridge. The CHP is urging motorists to use caution.